Line markings on roads and parking areas play a crucial role in reducing road accidents, controlling traffic, and highlighting obstructions. In addition, line marking is also used indoors, inside warehouses, car parks, factories, and public spaces. Over a period of time, due to vehicular traffic and the impact of the natural weather elements, the line marking paint starts to fade, peel away, or is discolored and is less visible. The line markings need to be stripped and reapplied from time to time for safety and directional guidance. In addition, when roads are altered or additional lanes added, the existing line marking needs to be removed and fresh lines painted. Removing the line marking can be challenging due to the rough nature of the surface (bitumen, concrete, asphalt, etc.) as the objective is to remove it without damaging the underlying surface and without leaving a scar or ghost mark behind.
This article will provide you with an overview of the various processes in practice that are used to remove line marking paint and the machinery required in the process. This includes a short summary of different types of paint used in line marking and the different methods of line marking removal. In particular, the article provides a small brief on wet abrasive sand blasting equipment, and why in many circumstances wet sand blasting can be the ideal method of line marking removal.